{
  "number": "091409186",
  "bankSlug": "first-interstate-bank",
  "bankName": "First Interstate Bank",
  "bankShortName": "First Interstate Bank",
  "bankType": "bank",
  "bankWebsite": "https://www.firstinterstatebank.com",
  "hqCity": "Billings",
  "hqState": "MT",
  "kind": "ach",
  "transferTypes": [
    "ACH"
  ],
  "label": "First Interstate Bank cross-checked routing number",
  "state": "MT",
  "verificationStatus": "cross-checked",
  "statusNote": "Cross-checked across 2 public candidate source families; not verified against an official bank source.",
  "sourceName": "2 public routing candidate source families",
  "sourceUrl": "https://github.com/braintree/us-bank-account-validator",
  "crossCheckSourceCount": 2,
  "lastReviewed": "2026-06-28"
}